Descriptions and Recognition of Larvae of Some Northern North American Species of ILYBIUS Erichson (Coleoptera: Dytiscidae)

B. J. Hicks; D. J. Larson

doi:10.1649/0010-065X(2000)054[0036:DAROLO]2.0.CO;2

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B. J. Hicks,^1,* D. J. Larson²

¹aCollege of the North Atlantic P.O. Box 60, Carbonear Newfoundland, A1Y 1B5, Canada
²bDepartment of Biology Memorial University of Newfoundland St. John's Newfoundland, A1B 3X9, Canada

^*Current address: Institute of Terrestrial Ecology, Edinburgh Research Station, Bush Estate, Penicuik, Midlothian, EH9 0QB, UK

Abstract

The morphology and chaetotaxy of larval instars of I. biguttulus Germar, I. pleuriticus LeConte and I. discedens Sharp are described and illustrated. Identification keys are provided for these and other known larvae of North American species. Multivariate analysis showed that larvae can also be identified through the use of several mensural characters.

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B. J. Hicks and D. J. Larson "Descriptions and Recognition of Larvae of Some Northern North American Species of ILYBIUS Erichson (Coleoptera: Dytiscidae)," The Coleopterists Bulletin 54(1), 36-59, (1 March 2000). https://doi.org/10.1649/0010-065X(2000)054[0036:DAROLO]2.0.CO;2

Received: 24 March 1999; Accepted: 1 August 1999; Published: 1 March 2000

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